The answer to 'why is my stink bug scratching sounds' is that the scratching or clicking noise is a common behavior of stink bugs. Stink bugs often make this sound as a way to communicate with other stink bugs, either to attract mates or to warn others of potential threats. This noise is typically produced by the stink bug rubbing its legs or body parts together.
Stink bugs are typically not harmful to humans, but their presence can be a nuisance. If you are experiencing a stink bug infestation in your home, there are several steps you can take to manage the problem, such as sealing entry points, using natural repellents, or setting up traps. However, if the infestation is severe or you are unable to effectively control the problem on your own, it may be best to contact a professional pest control technician for assistance.